How to use the Time Calculator
- Choose “Time between two times” or “Add / subtract time”.
- Enter your times (and any unpaid break).
- Read the duration in hours and minutes, and as decimal hours.
What does this tool do?
Timesheets usually need decimal hours: 7 hours 45 minutes is 7.75 hours, not 7.45. The calculator shows both.
If the end time is earlier than the start, it's treated as an overnight shift.
Why use it?
- Fill in timesheets correctly.
- Plan shifts and schedules.
- Add up durations without base-60 mistakes.
Example
A shift from 9:15 AM to 5:45 PM with a 30-minute unpaid break is 8 hours worked, or 8.00 decimal hours.
The formula
Decimal hours = hours + minutes ÷ 60
Privacy
The calculation happens instantly in your browser. The numbers you enter are not sent to our servers or saved. There's no account to create and nothing to install.
Last reviewed by the M2Toolkit team.